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What is the speed of light in vacuum? (2020)

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Question: What is the speed of light in vacuum? (2020)

Options:

  1. 3 x 10^8 m/s
  2. 3 x 10^6 m/s
  3. 3 x 10^7 m/s
  4. 3 x 10^9 m/s

Correct Answer: 3 x 10^8 m/s

Solution: 

The speed of light in vacuum is approximately 3 x 10^8 m/s.

What is the speed of light in vacuum? (2020)

Practice Questions

Q1
What is the speed of light in vacuum? (2020)
  1. 3 x 10^8 m/s
  2. 3 x 10^6 m/s
  3. 3 x 10^7 m/s
  4. 3 x 10^9 m/s

Questions & Step-by-Step Solutions

What is the speed of light in vacuum? (2020)
  • Step 1: Understand that light travels at a specific speed in a vacuum.
  • Step 2: Know that this speed is a constant value used in physics.
  • Step 3: The speed of light in vacuum is measured in meters per second (m/s).
  • Step 4: The approximate value of the speed of light is 300,000,000 m/s.
  • Step 5: This value can also be written in scientific notation as 3 x 10^8 m/s.
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